Oil-drop lubricator.



F. STABE.

OIL DROP LUBRIUATOR.

APPLICATION FILED 11150.8, 1912.

1,75,87/1. Patented 001;.14, 1913.

, 06m) 1 WWw w I gkodofi a I 9/47? COLUMBIA PLANOGRAPH 60., WASHINGTON, n. c.

FEODOR STABE, OF LANKWITZ, NEAR BERLIN, GERMANY, ASSIGN'OR TO INTERNA- TIONALE PRAZISIONS SCHMIERAPPAEATE GERMANY, A FIRM.

Specification of Letters Patent.

AKTIENGESELLSCHAFT, OF BERLIN,

Patented Got. 14, 1913.

Application filed. December 3, 1912. Serial No. 734,729.

To all whom it may concern Be it known that I, FnoDoR STABE, a subject of the King of Prussia, residing at 25 Waldmannstrasse, at Lankwitz, near Berlin, in the Kingdom of Prussia, in the German Empire, have invented certain new and useful Improvements in Oil-Drop Lubricators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to oil drop lubricators of the siphon feed type, and consists in constructions, arrangements and combination of parts as hereinafter described and claimed. Lubricators of this type as at present known are objectionable in that the siphon discharges upon the emptying of the oil chamber, and has therefore necessarily to be started upon the replenishment of the lubricator.

The present invention obviates this completely and renders possible an adjustment once for all of the oil supply.

Figure l is a vertical sectional view of the lubricator, and Figs. 2 and 3 are detail views of the float and siphon mechanism.

In the oil receptacle 1 (Fig. l) the float 3 floats upon the oil which is supplied through the tube 2. To this float is attached eccentrically the siphon tube 4 and the delivery tube 5. When the siphon tube and the delivery tube are filled with oil, then by means of the device a uniform uninterrupted flow of oil takes place independently of the level of the oil in the receptacle. WVhen the oil has run out of the receptacle 1, then the automatic closure takes place. The part 6 (Fig. 2) attached to the siphon tube 1 applies itself to the plate 7 (or to the bottom of the receptacle which for the purpose of this closure must be ground perfectly smooth) and thereby closes the tube. The weight of the float together with that of the siphon device causes this closure only when the center of gravity of the system remains within the supporting surface of the part 6 (as may be seen from Fig. 2). For this reason the siphon system must be arranged eccentrically. By the closure of the part 6 against the plate 7, the oil still remaining in the siphon device cannot flow out, a state of equilibrium is caused and the out-flow of the oil is interrupted. This position of equilibrium is removed when the receptacle is again filled with oil. When the float 3 is covered with oil then its buoyancy causes the siphon device to take a sloping position as shown in Fig. 3. By this means however the flow through the lower orifice on the part 6 is again caused so that the oil can again flow into the siphon device. At the same time the float rises in consequence of its buoyancy and floats upon the oil in the receptacle. The siphon tube effects again the flow of oil completely automatically because it remains continuously filled during the time of the interruption of the oil flow and supplies to the part to be oiled the predetermined quantity of lubricant which is adjusted once for all. -When the oil has again flowed out of the filled receptacle then the closure of the siphon tube occurs again and the above described actions are repeated. In order that any dirt which may settle in the oil receptacle 1 may not stop up the sieve in the part 6, the closing plate is so arranged that there is a free space underneath it. The dirt which deposits can obviously settle in the lowermost parts, underneath the closing plate. By this means the possibility of any stoppage is prevented and moreover the part 6 is certain to adhere properly to the plate.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is In a lubricatoi', the combination of a float; and a siphon delivering device, the short leg of said siphon projecting through and secured eccentrically to said float and terminating in a mouth adapted to encounter the bottom of the lubricator and effectually prevent further flow of the lubricant or the ingress of air whereby the siphon is prevented from discharging when the lubricator empties and automatically resumes its function immediately upon the replenishment of the lubricator.

In testimony whereof, I have affixed my signature, in presence of two witnesses.

HENRY HAsPER, WOLDEMAR HAUPT.

five cent 5 each. by addressing the Commissioner of Patents,

Washington, .D. G. 

